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A sample of sodium reacts completely with 0.142 kg of chlorine, forming 234 g of sodium chloride. What mass of sodium reacted?
Give the answer ect number of significant figures. Translate the "E" below into "x 10" to the power of whatever numto the corrber follows it. for example, 6.8 E +01 is 6.8 x 10^1
Determine the value of Kc for the following reaction if the equilibrium concentrations are as follows: [PCl5]eq = 0.56 M, [PCl3]eq = 0.23 M, [Cl2]eq = 4.4 M. PCl5(g) PCl3(g) + Cl2(g)
CH4(g) + 3 Cl2(g) CHCl3(g) + 3 HCl(g) How many grams of CH4 is needed to produce 43.0 g CHCl3?
Calculate the molarity of the 25.0 mL sample of 0.100 acetic acid which was diluted with 25.00 mL H2O
Calculate the concentration of the hydronium ion in a 3.433 * 10^(-2) M solution of potassium perchlorate acid to the correct number of significant figures or decimal places.
We are given an unknown antacid pill and through the procedure in this lab we determine its cost effectiveness to be 5.0x10-1 mole of acid/$. Can we also determine the number of moles of base in the pill
an insulated container holds 475g of molten indium (liquid) at a temperature of 276 C. if 511g of solid indium are warmed to the melting point (157 C) and than dropped into molten indium, the system comes to thermal equilibrium at the temperature ..
suppose we redefine the standard state as P=2 atm find the new standard state ^Gf values of the following substances: a) HCl b)N2O
for the reaction represented by the equation cl2 2kbr reg 2kcl br2 calculate the percentage yield if 200. g of
Consider 4.30 L of a gas at 365 mmH and 20 degrees C. If the container is compressed to 2.40 L and the temperature is increased to 39 degrees C, what is the new pressure, P2, inside the container
calculate the number of moles of He gas is present in a 1500ml balloon at a pressure of 640 torr and temperature of 25 degrees Celsius?
Consider the reaction Cu2S + O2 → 2Cu + SO2. If 55.0 grams of Cu2S is heated in excess O2, what is the mass of Cu that can be produced?
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